Getting the correct height of bushing is crucial to the geometry of your truck performing as it should. The board-side (bottom) bushing is especially important since it affects how the pivot nose sits in the pivot cup. The wrong height can lead to the pivot nose not touching the cup, binding against it, or other serious issues, especially in RKP trucks. The height of the Road-Side (top) bushing is more determined by kingpin length. 

If your trucks aren’t listed in our compatibility list, this page will teach you how to measure your bushings and check the geometry. We offer .4”, .5”, .6” and .75” bushings for standard skateboard trucks, as well as .55” and .65” heights specifically for Surfskate and Rollerskate trucks. 

Short Street 0.4" - Street 0.5" - CX Short 0.55" - Longboard 0.6" - CX Tall 0.65" - Tall 0.75"

Geometry 

To start, it’s a good idea to check the geometry of your trucks, especially if you’ve changed your bushings before. The hanger should be level with the baseplate for TKPs (Roller Skate trucks are Traditional Kingpin trucks). For RKP’s, the kingpin should be perpendicular to the axle (they form a 90 degree angle where they intersect)- you can take off the top bushing to get a better read on the angle. 

*If your Geometry looks incorrect, please contact us for help!*

If your geometry is correct with what you currently have, you can take apart your trucks and measure the bushings to find out what heights you need.

*Important for Roller Skate*: Most Roller Skates have a standard kingpin diameter of 3/8" (this includes skates that have kingpins that are slightly wider at the base, like the Powerdyne Reactors or Pilot Falcons). Some vintage or non-American plates will have wider kingpin diameters (1/2" is common). If you have kingpins that are wider than 3/8" please contact us for help, as we may or may not have cushions that will work in your plates. 

Most skateboard trucks have a standard size bushing seat, but it’s good to measure this first. Measure with a good ruler to the nearest 1/16 of an inch. Measure the bottom of the bushing (where it sits against the hanger, called the bushing seat), or measure the bushing seat itself. We offer all our heights for seats measuring .96” across, and our canon/magnum .6” height for bushing seats measuring .98” across. Most likely your trucks will be one or the other, if it’s difficult to say we recommend starting with our standard shapes (NOT canon and magnum). 

Next, measure the height of your bottom bushing. Be as precise as possible, as even  .05” can affect your geometry. Write this number down, or take a picture with the ruler to refer to when purchasing. 

Then, measure the height of your top bushing. As mentioned above the top bushing doesn’t affect the geometry of the truck very much, but it’s a good idea to stick as close to what you currently have as possible. However, if you’ve been struggling to tighten down your kingpin nuts because you’re out of space, you can buy slightly shorter bushings to make your life easier (or if you have tons of thread left, you can buy slightly taller).

And finally, use the links below to get to the correct heights. Please note when ordering: we carry more shapes in 0.5", 0.6" and 0.75" heights, but have cones and barrels in all other heights. If you haven’t checked out shapes, we highly recommend you do so before ordering, as shape and durometer combined affect the resistance of your bushings.